Mount Erupts Causes of Tsunami in Indonesia
Playqiuqiu.com News – The Meteorology, Climatology and Geophysics Agency (BMKG) has confirmed the cause of the Sunda Strait tsunami on Saturday night, December 22, 2018, triggered by avalanches due to the eruption of Mount Anak Krakatau on December 21.
Head of BMKG Earthquake and Tsunami Center Rahmat Triyono said there were satellite images that captured landslides on the slopes of Mount Anak Krakatau. “There are 64 hectares of mountain slopes missing,
it certainly makes a shock, “he said, Monday, December 24, 2018.
According to him, the earthquake sensor BMKG in Banten and Lampung noted vibrations. However, said Rahmat, the shock was not interpreted as an earthquake but an avalanche. After being converted, the magnitude of the shock is equivalent to the magnitude 3.4 earthquake.
Based on BMKG data, the epicenter or epicenter source is at the foot of the slopes of Mount Anak Krakatau. “Will it immediately disappear (64 hectares)? It needs research. But if it’s a little bit, it’s also impossible,” said Rahmat.
A number of earthquake experts and researchers conveyed various factors that could make a tsunami without an earthquake in the Sunda Strait associated with the eruption of Mount Anak Krakatau.
Tsunami experts from ITB, Hamzah Latief, said the tsunami in the Sunda Strait was confirmed. Regarding the exact cause, he said, there were several factors, especially those related to the activities of Gunung Anak Krakatau. “If the formation of a tsunami due to volcanoes causes a lot, there are 12,” Hamzah said on Sunday, December 23, 2018.
Factors such as lava avalanches, mountain down avalanches, caldera debris, differences in heat temperature. Also there are other tsunami causes such as blasting or explosions. “Like frying fish, there is hot oil, which is found to be cold and then explodes,” he said.
Meanwhile the Center for Volcanology of Geological Disaster Mitigation (PVMBG) in a press release in Bandung stated that the tsunami connection with eruption activities still had to be explored. To cause a Sunda Strait tsunami like what happened on Saturday night, December 22, 2018, for example there also needs to be a large collapse that enters the sea water column.
To eradicate the body part that landslides to the sea it requires considerable energy, and this is not detected by the seismograph at the volcano observation post. PVMBG states that it still needs data to be correlated between volcanic eruptions and the Sunda Strait tsunami.
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